Sounds like a $35 octave to me. 

Model: Eno Stompbox OCT-1 Octaver Pedal
Made: China, recent model (serial missing)
Type: octave
Power: standard 9v DC supply (not included)
Switching: true bypass
Equivalent new street price (approx): $65aud
Mods: none
Accessories: original velvet bag
Condition notes: used, no major marks, fully functional. Overall: excellent condition